Bearing part of automobile tensioning wheel

Abstract

The utility model discloses an automobile tensioning wheel bearing piece which comprises a bearing outer ring body, a bearing inner ring body and a plurality of roller pieces which are coaxially arranged, and roller groove positions are arranged on the inner ring of the bearing outer ring body and the outer ring of the bearing inner ring body. The multiple roller pieces are arranged in the roller groove positions so that the bearing outer ring body and the bearing inner ring body can be assembled and connected, the bottom end of the bearing outer ring body is provided with an integrally-formed flange part, and the top of the flange part is provided with integrally-formed bearing position knurls located on the outer ring of the bearing outer ring body. The integrally-formed flange part is arranged at the bottom end of the bearing outer ring body, and the integrally-formed bearing position knurl located on the outer ring of the bearing outer ring body is arranged at the top of the flange part, so that the hardness and wear resistance of the bearing outer ring body are guaranteed, and serious bearing wear caused by factors such as high temperature and high speed is reduced; therefore, the bearing plays a stable role in movement, the bearing can be kept balanced during high-speed operation or deceleration stop, and vibration and abrasion are reduced.

Description

Technical Field

[0001] This utility model relates to automotive tensioner bearing components and belongs to the field of bearing technology. Background Technology

[0002] Tensioners are classified into accessory tensioners (generator belt tensioners, air conditioning belt tensioners, supercharger belt tensioners, etc.) and timing belt tensioners based on their location. Tensioners are mainly classified into mechanical automatic tensioners and hydraulic automatic tensioners according to their tensioning method. The assembly of tensioners requires the use of bearings to ensure good rotational accuracy. Existing technology, such as the bearing disclosed in patent publication number CN209195949U, includes an inner ring and an outer ring arranged coaxially. The inner ring is composed of a first inner half ring and a second inner half ring that can be detachably connected, and the outer ring is composed of a first outer half ring and a second outer half ring that can be detachably connected. A first raceway is provided on the middle of the outer circumference of the inner ring, and a second raceway corresponding to the first raceway is provided on the middle of the inner circumference of the outer ring. A placement groove is formed between the first raceway and the second raceway. A number of matching spherical balls are provided in the placement groove. Each spherical ball has an oil reservoir. At least one through hole communicating with the oil reservoir is provided on the outer circumference of the spherical ball. Removable annular dust covers are provided on both sides of the outer ring. Each annular dust cover covers the placement groove, and a gap is left between the inner surface of the annular dust cover and the side surface of the inner ring. This invention solves the problems of inconvenient bearing disassembly and assembly, and reduces internal bearing wear, thereby extending the service life of bearings.

[0003] The drawback of this bearing design is that the hardness and wear resistance of the bearing outer ring cannot be guaranteed, and the bearing wear is severe due to factors such as high temperature and high speed. Therefore, we designed an automotive tensioner bearing component. Utility Model Content

[0004] The purpose of this invention is to provide an automotive tensioner bearing component to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automotive tensioner bearing component, comprising a bearing outer ring body, a bearing inner ring body, and multiple roller components arranged coaxially. Roller grooves are provided at the inner ring of the bearing outer ring body and the outer ring of the bearing inner ring body. Multiple roller components are disposed inside the roller grooves to assemble and connect the bearing outer ring body and the bearing inner ring body. An integrally formed flange portion is provided at the bottom end of the bearing outer ring body, and a bearing seat knurling is integrally formed at the top of the flange portion located on the outer ring of the bearing outer ring body.

[0006] In the aforementioned automotive tensioner bearing component, two recesses are provided at right angles on the outer ring of the bearing outer ring body. An oil reservoir block is installed inside each of the two recesses, and an oil guide nozzle is installed on the top of the two oil reservoir blocks.

[0007] In the aforementioned automotive tensioner bearing component, both of the oil guide nozzles are provided with oil outlets, which are connected to the roller grooves located on the outer ring of the bearing, allowing the lubricating oil inside the oil reservoir block to flow into the roller grooves.

[0008] In the aforementioned automotive tensioner bearing component, each of the two oil reservoir inserts is provided with an insertion positioning head at its bottom, and the oil reservoir insert is positioned in the recess of the outer ring of the bearing by means of the insertion positioning head.

[0009] In the aforementioned automotive tensioner bearing component, sealing rings are provided at the top and bottom of the outer ring of the bearing, and the two sealing rings are respectively connected to the top and bottom of the inner ring of the bearing.

[0010] In the aforementioned automotive tensioner bearing component, the sealing ring is composed of a rubber sealing ring and a sound-insulating damping rubber ring.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model relates to an automotive tensioner bearing component. By providing an integrally formed flange at the bottom of the bearing outer ring, and an integrally formed bearing seat knurling on the top of the flange located on the outer ring of the bearing, the hardness and wear resistance of the bearing outer ring are ensured. This reduces severe bearing wear caused by high temperature and high speed, enabling the bearing to play a stabilizing role during operation. The bearing maintains balance during high-speed operation or deceleration, reducing vibration and wear. Furthermore, by providing two right-angled recesses on the outer ring of the bearing outer ring, with oil reservoir inserts installed inside the recesses and oil guide nozzles installed on the top of the oil reservoir inserts, excellent transmission lubrication is achieved, reducing wear during operation. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the automotive tensioner bearing component of this utility model.

[0014] Figure 2 This is a schematic diagram of the installation structure of the roller component of the automotive tensioner bearing of this utility model.

[0015] Figure 3 This is a schematic diagram of the structure of the oil reservoir insert block of the automotive tensioner bearing component of this utility model.

[0016] In the diagram: 1. Outer bearing ring; 2. Inner bearing ring; 3. Sealing ring; 4. Flange; 5. Knurled bearing seat; 6. Oil reservoir insert; 7. Oil guide nozzle; 8. Oil outlet; 9. Insert positioning head; 10. Roller component. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-3 This utility model provides a technical solution for automotive tensioner bearing components:

[0019] Example 1: The bearing assembly includes an outer bearing ring 1, an inner bearing ring 2, and multiple rollers 10 arranged coaxially. Roller grooves are provided at the inner ring of the outer bearing ring 1 and the outer ring of the inner bearing ring 2. Multiple rollers 10 are disposed inside the roller grooves so that the outer bearing ring 1 and the inner bearing ring 2 are assembled and connected. An integrally formed flange 4 is provided at the bottom end of the outer bearing ring 1, and a bearing seat knurling 5 is integrally formed on the top of the flange 4 located on the outer ring of the outer bearing ring 1.

[0020] The advantages of this solution are: the hardness and wear resistance of the outer ring 1 of the bearing are guaranteed, reducing severe bearing wear caused by factors such as high temperature and high speed, enabling the bearing to play a stabilizing role in the movement, and allowing the bearing to maintain balance when running at high speed or decelerating and stopping, thus reducing vibration and wear.

[0021] Example 2: The bearing assembly includes a bearing outer ring 1, a bearing inner ring 2, and multiple rollers 10 arranged coaxially. Roller grooves are provided at the inner ring of the bearing outer ring 1 and the outer ring of the bearing inner ring 2. The multiple rollers 10 are disposed inside the roller grooves to assemble and connect the bearing outer ring 1 and the bearing inner ring 2. Two right-angled recesses are provided at the outer ring of the bearing outer ring 1. An oil reservoir block 6 is installed inside each of the two recesses. An oil guide nozzle 7 is installed on the top of the two oil reservoir blocks 6. An oil outlet 8 is provided at the oil port of each of the two oil guide nozzles 7. The oil outlet 8 connects to the roller groove located in the bearing outer ring 1, allowing the lubricating oil inside the oil reservoir block 6 to flow into the roller groove. An insertion positioning head 9 is provided at the bottom of each of the two oil reservoir blocks 6. The oil reservoir block 6 is positioned in the recess of the bearing outer ring 1 by the insertion positioning head 9.

[0022] The advantages of this solution are: it has a good transmission lubrication effect, which reduces noise and wear of the bearing during transmission.

[0023] Furthermore, in the two embodiments described above, sealing rings 3 are provided at both the top and bottom of the outer ring 1 of the bearing, and the two sealing rings 3 are respectively connected to the top and bottom of the inner ring 2 of the bearing; the sealing rings 3 are composed of a rubber sealing ring and a sound-insulating damping rubber ring. This is to ensure that the bearing as a whole has a good compact effect, while reducing dust from entering the roller grooves.

[0024] Contents not described in detail herein are existing technologies known to those skilled in the art. The specific embodiments described herein are merely illustrative examples illustrating the spirit of this invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this invention or exceeding the scope defined by the appended claims.

Claims

1. An automotive tensioner bearing assembly, comprising a bearing outer ring (1), a bearing inner ring (2), and a plurality of rollers (10) arranged coaxially, characterized in that, Roller grooves are provided at the inner ring of the bearing outer ring (1) and the outer ring of the bearing inner ring (2). Multiple rollers (10) are arranged inside the roller grooves so that the bearing outer ring (1) and the bearing inner ring (2) are assembled and connected. The bottom end of the bearing outer ring (1) is provided with an integrally formed flange (4). The top of the flange (4) is provided with a bearing seat knurling (5) located on the outer ring of the bearing outer ring (1) and integrally formed.

2. The automotive tensioner bearing component according to claim 1, characterized in that: The outer ring of the bearing outer ring (1) is provided with two recesses distributed at right angles. An oil storage insert (6) is installed inside the two recesses, and an oil guide nozzle (7) is installed on the top of the two oil storage inserts (6).

3. The automotive tensioner bearing component according to claim 2, characterized in that: Both of the oil guide nozzles (7) are provided with oil outlets (8), which are connected to the roller grooves located in the outer ring body (1) of the bearing, so that the lubricating oil inside the oil storage insert (6) flows into the roller grooves.

4. The automotive tensioner bearing component according to claim 2, characterized in that: Both of the oil storage inserts (6) are provided with an insertion positioning head (9) at their bottoms. The oil storage inserts (6) are positioned in the recess of the bearing outer ring (1) by the insertion positioning head (9).

5. The automotive tensioner bearing component according to claim 1, characterized in that: The outer ring body (1) of the bearing is provided with sealing rings (3) at the top and bottom, and the two sealing rings (3) are respectively connected to the top and bottom of the inner ring body (2) of the bearing.

6. The automotive tensioner bearing component according to claim 5, characterized in that: The sealing ring (3) is composed of a rubber sealing ring and a sound-insulating damping rubber ring.

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